<!DOCTYPE html>
<html lang="">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
    <title><%= htmlWebpackPlugin.options.title %></title>
  </head>
  <body>
    <noscript>
      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
    </noscript>
    <div id="app"><p>I am in app.</p></div>
    <div id="shadow"></div>
    <!-- built files will be auto injected -->
    <script>
      const shadowDOM = shadow.attachShadow({mode: 'closed'}) // 外界无法访问shadow dom
      const p = document.createElement('p')
      p.innerHTML = 'I am in shadow.'
      const style = document.createElement('style')
      style.textContent = `p {color: red}`
      shadowDOM.appendChild(style)
      shadowDOM.appendChild(p)
    </script>
  </body>
</html>
